Issued Patents 2023
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11824583 | Cyclic wavelength band replacement device, multi-band transmission system, and cyclic wavelength band replacement method | Takeshi Seki, Sachio Suda, Kohei Saito, Kenta Hirose | 2023-11-21 |
| 11812205 | Optical cross-connect device, optical transmission system, and optical transmission line connection error detection method | Masatoshi Namiki, Masahiro Yokota, Hiroto TAKECHI, Katsuhiro Araya, Masaaki Inami +2 more | 2023-11-07 |
| 11750317 | Wavelength cross connect device and cross connect connection method | Takeshi Seki | 2023-09-05 |
| 11722235 | Optical branch insertion device and optical branch insertion method | Takeshi Seki | 2023-08-08 |
| 11696056 | Optical transmission system and optical transmission method | Hiroto TAKECHI, Katsuhiro Araya, Masatoshi Namiki, Takeshi Seki | 2023-07-04 |
| 11677489 | Wavelength cross connect device, branch ratio variable method, and program | Takeshi Seki | 2023-06-13 |